Shorten the firewall name "xx - yy - zz - Eudemon8080-1. IDC". After modify as "E8000-1", the service become normal at this case.

Root Cause

Sig background prompts SSH connection failure, and Eudemon8080 prompt rsa key error.
SSH protocol limit the key pair name, that maximum length is 32 bytes. When FW generate RSA key pair, use "hostname" + "_host" and "hostname" + "_server" as the name of the key pair respectively.
According to the above analysis, in order to guarantee RSA CK create successfully, firewall name should not be more than 25 characters.

Suggestions

SSH protocol limit the key pair name, that maximum length is 32 bytes. When FW generate RSA key pair, use "hostname" + "_host" and "hostname" + "_server" as the name of the key pair respectively. In order to guarantee RSA CK create successfully, firewall name should not be more than 25 characters.